Simulating Reactive Motions for Motion Capture Animation
In this paper, we propose a new method for simulating reactive motions for motion capture animation. The goal is to generate realistic behaviors under unexpected external forces. A set of techniques are introduced to select a motion capture sequence which follows an impact, and then synthesize a believable transition to this found clip for character interaction. Utilizing a parallel simulation, our method is able to predict a character’s motion trajectory under dynamics, which ensures that the character moves towards the target sequence and makes the character’s behavior more life-like. In addition, the mechanism of parallel simulation with different time steps is flexible for simulation of multiple contacts in a series when multiple searches are necessary. Our controller is designed to generate physically plausible motion following an upcoming motion with adjustment from biomechanics rules, which is a key to avoid an unconscious look for a character during the transition.
KeywordsMotion Capture Protective Behavior Simulated Motion Physical Simulation Parallel Simulation
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- 1.Lee, J., Shin, S.Y.: A hierarchical approach to interactive motion editing for humanlike figures. In: The 26th Annual Conference on Computer Graphics and Interactive Techniques, pp. 39–48 (1999)Google Scholar
- 2.Witkin, A., Popovic, Z.: Motion warping. In: The 22nd Annual Conference on Computer Graphics and Interactive Techniques, pp. 105–108 (1995)Google Scholar
- 6.Hodgins, J.K., et al.: Animating human athletics. ACM Computer Graphics, 71–78 (1995)Google Scholar
- 7.Wooten, W.L.: Simulation of Leaping, Tumbling, Landing, and Balancing Humans. Doctoral thesis. Georgia Institute of Technology (1998)Google Scholar
- 8.Faloutsos, P., van der Panne, M., Terzopoulos, D.: Composable controllers for physics-based character animation. In: ACM SIGGRAPH 2001, pp. 251–260. ACM Press, New York (2001)Google Scholar
- 9.Oshita, M., Makinouchi, A.: A dynamic motion control technique for human-like articulated figures. In: Eurographics 2001, pp. 192–202 (2001)Google Scholar
- 10.Shapiro, A., Pighin, F.: Hybrid control for interactive character animation. In: The 11th Pacific Conference on Computer Graphics and Applications, pp. 455–461 (2003)Google Scholar
- 11.Mandel, M.: Versatile and interactive virtual humans: Hybrid use of data-driven and dynamics-based motion synthesis. Master’s thesis. Carnegie Mellon University (2004)Google Scholar